1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gala2k [10]
1 year ago
5

for a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 115 m

in and 135 min? (round your answer to four decimal places.)
Mathematics
1 answer:
Firdavs [7]1 year ago
6 0

The required probability that the sample mean courtship time is between 115 min and 135 min is 0.5269.

We know that probability is defined as the proportion of number of favorable outcomes to the total number of outcomes.

Probability implies plausibility. A piece of math deals with the occasion of a sporadic event. The worth is communicated from zero to one. Likelihood has been acquainted in Maths with foresee how likely occasions are to occur.

The significance of likelihood is essentially the degree to which something is probably going to occur. This is the fundamental likelihood hypothesis, which is likewise utilized in the likelihood dispersion, where you will get familiar with the chance of results for an irregular examination. To track down the likelihood of a solitary occasion to happen, first, we ought to know the complete number of potential results.

We have μ=115min

n=50

P(x₁<X<x₂)=P(z₂< (x₂-μ) /S.D) -P(z₁<(x₂-μ)/S.D)

S.D=√(σ²/ n)

=>S.D=√(115)²/50

=>S.D = √(13225)/50

=>S.D = √264.5

=>S.D = 16.26

P(115<X<135)=P(z₂< (135-115)/16.26)-P(z₁ <(100-115) / 16.26)

=>P((115<X<135)=P(z₂<20/16.26)-P(z₁< -15/16.26)

=>P(115<X<135)=P(z₂<1.23) - P(z₁<-0.922)

From the probability distribution table

P(z₂<1.23)=0.6255

P(z₁<-0.922)=0.0986

P(115<X<135)=0.6255-0.0986

=>P(115<X<135)=0.5269

Hence, required probability is 0.5269

To know more about probability, visit here:

brainly.com/question/11234923

#SPJ4

You might be interested in
One of hundred equal parts
Westkost [7]
The answer would be 1/100 or 0.01
5 0
3 years ago
Read 2 more answers
One half of the sum of 3 and q
ivann1987 [24]
Here you go let me know if you have questions
7 0
3 years ago
a truck driver needs to drive his load to a destination that is 2760 miles away how many miles on average will he have to drive
vladimir1956 [14]
1 week = 7 days....so 1 week and 1/2 day = 7.5 days

2760 / 7.5 = 368 miles per day <==
6 0
3 years ago
100/60 is exactly 1.66666666667. When I do long division my answer comes up as 1.6 with the decimal repeating, am I doing anythi
goblinko [34]

Answer:

I don't think you are doing anything wrong. Just ignore it and write the repeating decimal. If you're asked to do it, round it up instead.

5 0
3 years ago
Read 2 more answers
Please help me I need this answer
alexandr402 [8]

Answer:

Then answer is 10.

Step-by-step explanation:

9 would cover 1,800 square feet so 925 square feet would be left so you should buy 10 cans.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What’s the measure of angle x?
    13·2 answers
  • The vertex of parabola is (2,-2) Another point on the parabola is (5,7). find another point on the parabola.
    8·1 answer
  • How do u write negative 2/9 in a decimal
    12·1 answer
  • A bookstore has a sale: Jen wants to buy four books: for $10.00, for $12.00, for $15.00, and for $20.00. What is the smallest sh
    15·1 answer
  • How do i find upper and lower quartile<br> please help will give brainliest
    8·1 answer
  • What is the simple interest earned on $2500.00 that earns 3.5% interest for 24 months?
    8·1 answer
  • WILL BRAINLIST<br> Given the points (-4, 6) and (1, -2) find the slope.
    6·2 answers
  • Need help im struggling ​
    15·2 answers
  • Perimeter of a rectangle is 72 inches. The width is twice
    8·2 answers
  • If the food bill is $38.92, then what would the tip be if you want to leave a tip of 15%?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!